I use Ethernet for most of my connections (my house was prewired) not because of sound quality but to keep the Jewish laser satellites from stealing my music and then wiping my hard-drive soft...
On a serious note, if ever in doubt keep in mind an access point to ethernet is no more than a wifi receiver like the one in a Node 2i (or whatever a person may be using) with a wire hanging out.
A good way to see whether it is adding speed or throughput (which is more important and not the same thing) is to test these wirelessly on a laptop near your equipment and then test again using an access point while remembering throughput is the most important aspect of any given means of DATA transport.
On a serious note, if ever in doubt keep in mind an access point to ethernet is no more than a wifi receiver like the one in a Node 2i (or whatever a person may be using) with a wire hanging out.
A good way to see whether it is adding speed or throughput (which is more important and not the same thing) is to test these wirelessly on a laptop near your equipment and then test again using an access point while remembering throughput is the most important aspect of any given means of DATA transport.